Feature
1). Using the original TPA6120A and NE5534.
2). The capacitor capacity using 2 x 3300UF, strong support for a steady of power.
3). The of rings resistance metal resistance, the main circuit employs a precision of ± 1% metal film resistors rings, the machine a good signal to noise .
4). PCB using 1.6mm thick double-sided sheet, 2.0 copper thickness, HASL whole process to that the size of the current through the good performance. PCB-class quality. The entire circuit board trace layout is quite and reasonable, the overall PCB traces using a little grounding. In the dead of night hear the background noise contained headphones, quiet.
Use UPC1237 and relay output delay for protection
The two red switches corresponding channel gain switch.
Specification
Basic parameters:
Board size: 104MM x 88MM
Operating Voltage: dual AC15V-0-15V
Applicable Headphone Impedance: 32 -600 ohm
Frequency response: 20HZ-20KHZ
Color as shown
Material: ABS Package Contents:1 x Headphone Amplifier board Only the above package content, other are not included.
Note: Light and different displays may cause the color of the item in the a little different from the real . The measurement allowed error is +/- 1-3cm.